二年级上册数学- 100以内的加法和减法-第二单元测试卷(一)
第二单元测试卷(一)一、填一填。1.列竖式计算加法和减法时,都要把( )对齐,从( )位算起。2.做加法时,个位相加满( ),要向十位进( );做减法时,个位不够减,要从( )位借1当( )来减。3.48比30多( ),25比42少( )。4.比57多13的数是( ),比53少26的数是( )。5.( )+26=50 70-( )=18 ( )-37=48二、连一连。 得数小于50的算式 得数大于80的算式 三、选一选。(在括号里填上正确答案的序号)1.丽丽的身高是94厘米,云云比丽丽矮6厘米。云云的身高是()厘米。①100 ②88 ③82 ④34...
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